John C Stennis Space Center Stennis Space Ctr Cpu Stennis Space Ce, MS 39529 Phone : (228) 688-3390 U S Government--national Aeronautics And Space Administration John 1 Stennis Space Ctr Na Cpu Stennis Space Ce, MS 39522 Phone : (228) 688-2211 U S Government--mason Technologies 1 Stennis Space Ctr Na Cpu Stennis Space Ce, MS 39522 Phone : (228) 689-0204